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    • 3. 发明授权
    • Imidazolidinone derivative, method of producing the same and method of producing optically active amino acid
    • 咪唑啉酮衍生物,其制备方法和制备光学活性氨基酸的方法
    • US07947722B2
    • 2011-05-24
    • US12309729
    • 2007-05-14
    • Yasuhiro SakaAkio FujiiKazumi OkuroMasaru Mitsuda
    • Yasuhiro SakaAkio FujiiKazumi OkuroMasaru Mitsuda
    • A61K31/4166C07D233/32
    • C07D233/32C07C227/22C07C231/10C07C229/14C07C229/22C07C229/36C07C237/06
    • The objective of the present invention is to provide an optically active imidazolidinone derivative widely usable for synthesizing an optically active amino acid, a method of easily producing the derivative, and a method of easily producing an optically active amino acid by using the derivative. The objective can be achieved by producing an optically active amino acid using a novel optically active imidazolidinone derivative represented by a general formula (3) and the like. According to the method of the present invention, an optically active imidazolidinone derivative can be obtained by preferential crystallization from a mixture of isomers of the imidazolidinone derivative. Therefore, an optically active amino acid can be easily and stereoselectively produced without cumbersome procedures required for the conventional methods, such as resolution of diastereomers, synthesis from an optically active amino acid and resolution of isomers by silica gel column chromatography.
    • 本发明的目的是提供广泛用于合成光学活性氨基酸的光学活性咪唑啉酮衍生物,易于制备衍生物的方法,以及通过使用该衍生物容易地制备光学活性氨基酸的方法。 可以通过使用由通式(3)等表示的新的光学活性咪唑烷酮衍生物制造光学活性氨基酸来实现。 根据本发明的方法,可以通过从咪唑烷酮衍生物的异构体的混合物中优先结晶获得光学活性咪唑烷酮衍生物。 因此,光学活性氨基酸可以容易地和立体选择性地产生,而不需要常规方法所需的繁琐程序,例如拆分非对映异构体,由光学活性氨基酸的合成和通过硅胶柱色谱法拆分异构体。
    • 5. 发明申请
    • METHOD FOR PRODUCING OPTICALLY ACTIVE 2-ARYLPIPERAZINE DERIVATIVE
    • 用于生产光学活性2-亚氨基吡啶衍生物的方法
    • US20100087643A1
    • 2010-04-08
    • US12449460
    • 2008-02-05
    • Masatoshi OhnukiAkira NishiyamaMasaru Mitsuda
    • Masatoshi OhnukiAkira NishiyamaMasaru Mitsuda
    • C07D241/04
    • C07B53/00C07D241/04
    • The objective of the present invention is to produce an optically active 2-arylpiperazine derivative useful as a synthetic intermediate for pharmaceutical products and agricultural chemicals from inexpensive and readily available starting material by an industrially practicable method. The objective can be accomplished by treating an optically active substituted aminodiol derivative produced from an optically active styrene oxide derivative with a sulfonating agent in the presence of a base, and then reacting an amine compound to obtain the 2-arylpiperazine derivative. Especially, an optically active 1-unsubstituted-2-arylpiperazine derivative can be produced by treating an optically active 1-allyl-2-arylpiperazine derivative with water in the presence of a transition metal catalyst for deallylation.
    • 本发明的目的是通过工业上可行的方法从便宜且容易获得的原料制备用作药物产品和农药的合成中间体的光学活性2-芳基哌嗪衍生物。 该目的可以通过在碱的存在下用磺化剂处理由光学活性苯乙烯氧化物衍生物产生的光学活性取代的氨基二醇衍生物,然后使胺化合物反应得到2-芳基哌嗪衍生物来实现。 特别地,光学活性的1-未取代-2-芳基哌嗪衍生物可以通过在过渡金属催化剂的存在下用水处理光学活性的1-烯丙基-2-芳基哌嗪衍生物来进行脱气。
    • 8. 发明授权
    • Method for producing optically active 2-arylpiperazine derivative
    • 光学活性2-芳基哌嗪衍生物的制备方法
    • US08273883B2
    • 2012-09-25
    • US12449460
    • 2008-02-05
    • Masatoshi OhnukiAkira NishiyamaMasaru Mitsuda
    • Masatoshi OhnukiAkira NishiyamaMasaru Mitsuda
    • C07D241/04C07D295/00
    • C07B53/00C07D241/04
    • The objective of the present invention is to produce an optically active 2-arylpiperazine derivative useful as a synthetic intermediate for pharmaceutical products and agricultural chemicals from inexpensive and readily available starting material by an industrially practicable method. The objective can be accomplished by treating an optically active substituted aminodiol derivative produced from an optically active styrene oxide derivative with a sulfonating agent in the presence of a base, and then reacting an amine compound to obtain the 2-arylpiperazine derivative. Especially, an optically active 1-unsubstituted-2-arylpiperazine derivative can be produced by treating an optically active 1-allyl-2-arylpiperazine derivative with water in the presence of a transition metal catalyst for deallylation.
    • 本发明的目的是通过工业上可行的方法从便宜且容易获得的原料制备用作药物产品和农药的合成中间体的光学活性2-芳基哌嗪衍生物。 该目的可以通过在碱的存在下用磺化剂处理由光学活性苯乙烯氧化物衍生物产生的光学活性取代的氨基二醇衍生物,然后使胺化合物反应得到2-芳基哌嗪衍生物来实现。 特别地,光学活性的1-未取代-2-芳基哌嗪衍生物可以通过在过渡金属催化剂的存在下用水处理光学活性的1-烯丙基-2-芳基哌嗪衍生物来进行脱气。